US 8209802 B2
A combination patient support table and stretcher assembly having a patient support surface including at least first and second planar sections convertible between first end-to-end secured and second collapsible arrangements. A plurality of legs extend from corner locations associated with the planar support sections, the legs are convertible at least between first downwardly supporting and second outwardly pivoting positions. The assembly operates in a selected configuration as a ground supported and elevated table, and which can further be reconfiguring through actuation of the legs to reconfigure as a patient transportable stretcher.
1. A combination patient support table and stretcher assembly, comprising:
a patient support surface including a planar and interiorly open central section, first and second planar end extending sections being telescopically displaceable relative to first and second open ends of said central section and in order to be convertible between first extended use and second collapsed non-use arrangements; and
a plurality of legs pivotally connected to and extending from corner locations associated with said end extending sections by a two part hinge assembly, an upper hinge supporting portion associated with each leg in turn communicable with a recessed cavity defined in inwardly and linearly extending fashion within an edge extending interior of said end sections such that, in said extended use arrangement with said hinge supporting portion in an outward most extended position relative to said associated recessed cavity, said legs being convertible between a first downwardly supporting position in which said assembly functions as a table top surface and second outwardly pivoting positions in which said pairs of said legs extend in opposite and parallel fashion relative to said end extending sections to further function as a patient transportable stretcher;
said legs displacing inwardly within said recessed cavities and said opposite end extending sections in turn displacing within said central section in order to achieve said collapsed non-use arrangement.
2. The combination patient support table and stretcher assembly as described in
3. The combination patient support table and stretcher assembly as described in
4. The combination patient support table and stretcher assembly as described in
The present invention relates generally to convertible stretcher assemblies. More specifically, the present invention teaches a combination table and convertible stretcher assembly, and such as including a multi-section and foldable support surface, in addition to extending legs which can pivot between table supporting (vertical) and stretcher extending (horizontal) positions, and in addition to being retractable within seating locations associated with the sectioned support surface for portability of storage or transport.
Various types of convertible cot and patient transport assemblies are known in the prior art. A first example of such a device is disclosed in the multiple purpose ambulance cot with removable stretcher top set forth in U.S. Pat. No. 4,037,871, to Bourgraf. The ambulance cot includes a base structure which serves as a carrier for a removable stretcher forming a top for the carrier.
Loescher, U.S. Pat. No. 5,345,881, teaches a folding table mechanism employing hollow rail members which support the mechanism therebetween. A pair of legs are mounted to the ends of a stretcher member to form a folding unit, and which is both translated and rotationally connected to the rail members by an over center cam mechanism operated by a lock bar capable of exerting locking force in both the unfolded and folded positions of the table legs.
Wicks, U.S. Pat. No. 3,167,789, teaches a patient supporting and carrying means for operating as a stretcher table and hospital bed and which includes multiple hinged and assembleable sections. Bono, U.S. Pat. No. 5,201,536, discloses a multi-purpose combination carrier cart/table.
A combination patient support table and stretcher assembly having a patient support surface including at least first and second planar sections convertible between first end-to-end secured and second collapsible arrangements. A plurality of legs extend from corner locations associated with the planar support sections, the legs are convertible at least between first downwardly supporting and second outwardly pivoting positions. The assembly operates in a selected configuration as a ground supported and elevated table, and which can fu-tier be reconfiguring through actuation of the legs to reconfigure as a patient transportable stretcher.
Additional features include a lunged connection established between the at least first and second planar sections. A central planar section separates the first and second edge extending sections. First and second edge extending sections can also be hingedly secured to opposite upper and underside surfaces associated with a central section, such that the edge extending sections may disengaged from the end-secured arrangement and prior to rotating to the collapsed and stowable arrangement.
In a further desired variant, a selected planar section is linearly displaceable and insertable within a side apertured and interiorly hollowed additional planar section, a central planar section separating first and second edge extending sections. The first and second edge extending sections are each nearly displaceable in a storable configuration relative to first and second interiorly hollowed regions defined within an elongated central section. Catch portions retain the edge extending sections in either of inwardly displaced stowed or outwardly extending use positions relative to the central section.
Additional features include pivotally and releasably engageable bracket supports secured against underside locations of a central planar section and, upon pre-rotating the legs to their downwardly extending and supporting positions, the brackets are converted about locations associated with the central section to secured to locations of the downwardly extending legs in order to provide desired reinforcing support to the assembly. Wheels extending from bottom end locations of the legs provide the configured table assembly wide the ability to be more easily transported upon a ground location, while also incorporating such as locking means or the like for selectively immobilizing the table. Inwardly extending recess channels are also defined within exposed outermost edges of the planar sections, the outwardly pivoted legs adapted to be slidingly inserted within the channels.
Reference will now be made to the attached drawings, when read in combination with the following detailed description, wherein like reference numerals refer to like parts throughout the several views, and in which:
Referring now to
Referring again to
The individual sections 12, 14 and 16 each further exhibit a planar upper surface and can be interconnected in a first configuration by hinged portions (see inset at 18 and 20 in
Referring again to
A plurality of interior recessed cavities, see as shown at 34, 36, 38 and 40, are defined in an inwardly and linearly extending fashion which are accessible from opposite end surfaces of the edge extending sections 14 and 16, and positioned proximate each corner of the selected edge extending sections 14 and 16. In one preferred embodiment, the associated legs are dimensioned such that they can be lengthwise inserted into the cavities, upon being first rotated to the horizontal (stretcher) configuration referenced again at 28′ for leg 28.
The use of appropriate retaining and disengaging structure is envisioned, and such as enabling the legs to be releasably locked in a desired downward (26, 29) or in a generally linearly outward fashion (see as again referenced by selected leg positioned at 28′), this combined with the ability to permit the legs to be further slidably inserted into the recess channels when desired to convert the assembly to a stored configuration. In this fashion, the legs in combination with the associated bracket/clip structure can be locked in either a table top or stretcher configuration. Additional variants also contemplate substituting the inwardly recessed channels shown in favor of underside configured and surface accessible recesses (not shown) for releasably engaging the legs against the underside of such as the center section 12.
Referring further to
Finally, and referring to
A plurality of legs, illustrated by front legs 70 and 72 and rear legs 71 and 73, are again convert-ably mounted to associated corner defined locations of the outer and edge extending sections 66 and 6S. The legs can again be constructed of materials similar to those associated with the planar support defining central section 64 and end engaged sections 66 and 68 and can be hingedly or otherwise pivotally secured in selectively releasable fashion in either of downward extending and horizontally disposed fashions.
Clips 74 and 76 are illustrated and which can be utilized to selectively engage the legs 70-73 in their downwardly pivoted and table supporting locations and, such as in combination with a suitable hinged attachment (not shown but previously representatively illustrated in
Additional and pivotally engageable bracket supports, see at 78 and 80, can be secured in initial stowed positions against underside locations of the edge extending sections 66 and 68, and such as through the provision of resistive snap fit or other restraining fasteners. Upon pre-rotating the legs to their downwardly extending and supporting positions, the brackets 78 and 80 are converted (such as pivotally or hingedly) about first and second opposite and edge extending sections 66 and 68 undersides, and through intermediate 78′ and 80′ and final downward 78″ and 80″ extending positions, at which point end clip portions 82 and 84 of the brackets are secured to intermediate locations (e.g. clip or bracket defined) of the selected illustrated downwardly extending legs 70 and 72 and in order to provide desired reinforcing support to the assembly. The clip portions 82 and 84 can include slot and tab or other defined structure for quickly securing to the illustrated locations of the legs 70 and 72, it also being understood that a suitable reconfigured scissor assembly (not shown) can be provided for each leg to edge extending section connection and by which the leg can be pivotally associated therewith for converting between downwardly extending table top support and outwardly/horizontally extending stretcher support configurations, such as without first requiring such a reconfigured clip or catch assembly from being disengaged from the leg.
Wheels, such as castor or trolley supporting wheels, are referenced (at 86 and 88 for legs 70 and 72). The wheels 86 and 88 provide the converted table assembly with the ability to be more easily transported upon a ground location, while also incorporating such as locking means or the like (see at 89 for wheel 88) for selectively immobilizing the table. The design of the wheels is further such that they do not interfere with the use of the legs in an outward and horizontally extending stretcher configuration, nor do they prevent the legs from being inwardly displaced relative to edge defined and inwardly extending recess channels, see further at 90 and 92 for associated legs 70 and 72. In this fashion, the wheels 86 and 88 can either be totally recessed within outermost locations of the inward channels 90 and 92 or, alternatively, project a limited and non-hindering distance from outer side edge surfaces of the outer extending portions 66 and 68. It is also envisioned that the legs 70 and 72, upon being recess fitted within the channels 90 and 92, can be prevented from inadvertently displacing outward, such as through the use of catches, tabs, resistant press fit portions, or the like (not shown).
Having described my invention, other and additional preferred embodiments will become apparent to those skilled in the art to which it pertains, and without deviating from the scope of the appended claims. Along these lines, the three-section planar support arrangement illustrated in the figures and also include bi-section and central folding planar support, as well as multiple support defining sections in excess of the three shown, along with the provision of any necessary bracketry required for providing reinforcing support to the table sections and legs when converted to or between their downwardly extending and supporting, upwardly rotated and horizontally extending, and inwardly recess inserted or folding configurations.